配电保护
简介
MicroLogic Active 控制单元设计用于提供过流和接地故障电流保护。
描述
选择保护特性时应考虑以下各点：
-
过载电流（过载和短路）和潜在接地故障电流
-
需要保护的导体
-
设备之间的协调和选择性
-
是否有谐波电流
保护特性可通过脱扣曲线表示，它说明断路器脱扣时间与测量的电流和保护设置的函数关系。保护设置在 MicroLogic Active 控制单元的额定电流 In 上标示。
额定电流 In
保护设置范围取决于额定电流 In，这个值由插入 MicroLogic Active 控制单元的传感器插头定义。
联系您的 Schneider Electric 服务代表 更换或改装传感器插头。机械失配保护可防止安装的传感器插头不兼容断路器壳架等级。
对于 IEC 标准的断路器，可用的传感器插头产品如下表所示。
|
输入 |
商业型号 |
壳架额定电流 |
|||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
MTZ1 |
MTZ2 |
MTZ3 |
|||||||||||||||
|
06 |
08 |
10 |
12 |
16 |
08 |
10 |
12 |
16 |
20 |
25 |
32 |
40 |
40 |
50 |
63 |
||
|
400 A |
LV947053 |
✔ |
✔ |
✔ |
✔ |
✔ |
✔ |
✔ |
✔ |
✔ |
✔ |
– |
– |
– |
– |
– |
– |
|
630 A |
LV933091 |
✔ |
✔ |
✔ |
✔ |
✔ |
✔ |
✔ |
✔ |
✔ |
✔ |
– |
– |
– |
– |
– |
– |
|
800 A |
LV933092 |
– |
✔ |
✔ |
✔ |
✔ |
✔ |
✔ |
✔ |
✔ |
✔ |
– |
– |
– |
– |
– |
– |
|
1,000 A |
LV933093 |
– |
– |
✔ |
✔ |
✔ |
– |
✔ |
✔ |
✔ |
✔ |
– |
– |
– |
– |
– |
– |
|
1,250 A |
LV833094 |
– |
– |
– |
✔ |
✔ |
– |
– |
✔ |
✔ |
✔ |
✔ |
✔ |
✔ |
– |
– |
– |
|
1,600 A |
LV933095 |
– |
– |
– |
– |
✔ |
– |
– |
– |
✔ |
✔ |
✔ |
✔ |
✔ |
– |
– |
– |
|
2,000 A |
LV933982 |
– |
– |
– |
– |
– |
– |
– |
– |
– |
✔ |
✔ |
✔ |
✔ |
– |
– |
– |
|
2,500 A |
LV933983 |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
✔ |
✔ |
✔ |
– |
– |
– |
|
3,200 A |
LV933984 |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
✔ |
✔ |
– |
– |
– |
|
3,600 A |
LV936390 |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
✔ |
– |
– |
– |
|
4,000 A |
LV947820 |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
✔ |
– |
– |
– |
|
2,000 A |
LV947821 |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
✔ |
✔ |
✔ |
|
2,500 A |
LV947822 |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
✔ |
✔ |
✔ |
|
3,200 A |
LV947823 |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
✔ |
✔ |
✔ |
|
4,000 A |
LV947824 |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
✔ |
✔ |
✔ |
|
5,000 A |
LV947825 |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
✔ |
✔ |
|
6,300 A |
LV947826 |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
✔ |
MicroLogic Active 2.0 控制单元
|
IEC 标准的 MicroLogic Active 2.0 控制单元提供：
MicroLogic Active 2.0 控制单元的保护功能可在没有辅助供电的情况下运行。该控制单元通过流经断路器的电流供电。 |
MicroLogic Active 5.0 控制单元
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IEC 标准的 MicroLogic Active 5.0 控制单元提供：
MicroLogic Active 5.0 控制单元的保护功能可在没有辅助供电的情况下运行。该控制单元通过流经断路器的电流供电。 |
MicroLogic Active 6.0 控制单元
|
IEC 标准的 MicroLogic Active 6.0 控制单元提供：
MicroLogic Active 6.0 控制单元的保护功能可在没有辅助供电的情况下运行。该控制单元通过流经断路器的电流供电。 |
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DIN / DINF 和 SELLIM 瞬时保护
DIN/DINF 和 SELLIM 瞬时保护属于内部保护，当短路电流达到断路器的耐受限值时使用。这些保护不可调整，在正常运行条件下一般不会触发。
DIN / DINF 和 SELLIM 瞬时保护可生成下列预定义事件。
|
代码 |
事件 |
历史记录 |
严重性 |
|---|---|---|---|
|
0x4006 (16390) |
极限自保护 (SELLIM) 脱扣 |
脱扣 |
高 |
|
0x401D (16413) |
极限自保护 (DIN/DINF) 脱扣 |
脱扣 |
高 |
用户无法修改预定义事件。有关事件的常规信息，请参阅事件管理。
建议操作
复位脱扣事件
有关在因电气故障而脱扣之后复位断路器的说明，请参阅相关文档：
-
带 MicroLogic Active 控制单元的 MasterPacT MTZ1 IEC 断路器 - 用户指南
-
带 MicroLogic Active 控制单元的 MasterPacT MTZ2/MTZ3 IEC 断路器 - 用户指南